Fast, scalable, and eco-friendly fabrication of an energy storage paper electrode

• Koga, Hirotaka

• Tonomura, Hidetsugu

• Nogi, Masaya

• Suganuma, Katsuaki

• Nishina, Yuta

抄録

Reproduced from Ref. Green Chem., 2016,18, pp. 1117-1124. with permission from the Royal Society of Chemistry.

Recent progress in portable and wearable electronics has promoted a growing demand for high-performance and flexible energy-storage devices that are abundant and affordable. Because reduced graphene oxide (rGO), originating from inexpensive graphite, serves as a higher-performance energy-storage electrode than conventional activated carbons and carbon nanotubes, research and development of rGO/polymer composite electrodes for flexible supercapacitors have become a center of attraction. However, the fabrication of rGO-based flexible electrodes frequently requires a long time with high-temperature treatment or toxic chemical treatment, resulting in the lack of scalability and eco-friendliness. Here we show a fast, scalable, and environment-compatible route to fabricate a high-performance rGO/cellulose paper supercapacitor electrode. Single-layer graphene oxide (GO) sheets and recycled waste pulp fibers were successfully fabricated into a paper composite by a well-established scalable papermaking process, followed by a room-temperature, additive-free, and millisecond-timescale flash reduction process. The as-prepared rGO/paper electrode had a high specific capacitance, up to 212 F g-1, for an all paper-based flexible supercapacitor, comparable to those of state-of-the-art rGO-based electrodes, while dramatically decreasing the reduction time of GO from the conventional hour timescale to milliseconds. This work will pave the way for green, flexible, and mass-producible energy-storage paper in future wearable electronics.

収録刊行物

• Green Chemistry

  Green Chemistry 18 (4), 1117-1124, 2016

  Royal Society of Chemistry

詳細情報

• CRID: 1050018218948170368
• NII論文ID: 120006955456
• NII書誌ID: AA11328146
• ISSN: 14639270
• ISSN: 14639262
• HANDLE: 11094/78440
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • CiNii Articles